R. Ari Kießer is a Life Cycle Assessment (LCA) practitioner with over five years of experience in sustainability assessments. They began their career as a sustainability consultant, specializing in agricultural LCA modelling and related topics such as land use change and soil organic carbon. In September 2024, they joined the Fraunhofer ISE as a research associate, where they work within the agrivoltaics department and continue to focus on LCA of agrivoltaics. Currently, they are also pursuing a dissertation focused on life cycle sustainability assessments (LCSA) for agrivoltaic systems, expanding the scope of the environmental analysis to include all pillars of sustainability.